I'm not being stupid here. Not correctly, as in, not as the labels on the device says
So, the situation is, I have a TP&N distribution board with a regular 125A 4 pole mainswitch. The terminals serve in order- N, L1, L2, L3 with the neutral on the left.
This installation is to have a 300mA RCD...
Hi, here's a good one - replaced 15 E-lights recently, (tube type replaced with Newlec led type), and noticed one of the old outside Thorn 2D E-lights was on when driving past a few days later. The Thorn lights are all up to spec and function as they should. Went to investigate and it seems that...
Hi,
I have had a client (Football Club) ask if I can test and certificate their sports field floodlighting lux levels for the regs of the league they are in.
Does anyone know whether formal training and qualification is required for this or can anyone with a lux meter and the appropriate...
Hi everyone,
I recently moved into a new build house with a fitted bathroom complete with fan that comes on/off with the light switch (+delay for going off).
Strangely when you switch the lights on/off in the hallway next to the bathroom is sometimes disturbs the fan so you can hear it skip...
Hello Chap/ettes,
Testing a RFC today. End-End values spot on: 0.19/0.21/0.34. All IR tests good bar N1-CPC2 which was 0.0 mega ohms.
N2-CPC2 was >299 mega ohms.
Why, if I am getting 0.21 and 0.34 on the end-end am I not getting 0.0 m ohms on both neutrals?
Is it to do with the resolution of...
Hi
Customer has a Polyphase Energy Meter, connected to the incoming 3 phase supply.
Her bills are a bit high, but I was wondering as she is only using 1 phase, is there any value (ie cheaper bills) to spreading the load over the other phase's?
Any thoughts appreciated
I'm having a problem on an AHU that will not hit btemperature the actuators to htg coil are fully open and hot water is passing through but i am not getting my set point met by 8 degrees C, can anyone give me some advice please
Hi im new to this game as you will probably tell but i am also not one of these fly by night just done a weeks course i can now do everything guy. Basicaly my experiance so far is 100% mains electric supply as i work for a energy supplier installing single phase and 3 phase electric meters. my...
Hello, after shutdown of power supply ,at the next time of start, my water pump it is breakdown. I think my circuit protection is not approperiate, because it is the second breakdown !!
please,how to protect my installation correctly.
thank you
hi i was doing a job today and noticed that a plumber had done some work and he had spured off from the supply cable to the shower from the switch. In my apprentice days i was told that this should not be done and if i remember correctly it says in the regs
any advise to what to tell the client...
Hi, I just bought a new ballest ( Tridonic Atco 2 x 39 Watt HO T5 Electronic Ballast - Part No. PC 2/39 T5 PRO ) for my fishtank light fluval Osaka edge 260, the old ballest seemed to be dead.
I have wired the lamp holders correctly I think? But when I plug it in, the light just flickers on...
I have just had installed a Aurora power one split invertor and have 6 250W Solarworld panels facing east, plus 6 facing west.
How do I know if both sides are working correctly ?
I have no manual on the Aurora but from the panel readout I assume that PIN 1 is for one set of panels and PIN 2 is...
I am putting lights and sockets in an extention for a customer and the currrent cu is full, so, my plan is to add a 2nd cu for the extention. It seems the most popular idea is to use henley blocks and split the supply, which i understand no problem, my question(s) are :
1) Do i need 2 extra...
I'll be contacting my installer of course as well, but a second opinion is always helpful.
The 4000TL inverter had shut down this morning (early - so very little panel output) with a red light error indicator - but the error messages were in german so I don't know what the problem is. This...
Hello everyone i am new to this fourm.
I have a big problem here.
I have a zavagli santi z21 2 post garage lift .
There are two motors (Belt on each motor on each post). (Not hydraulic )
Specs -
Art:z21
Max-20A
220v 50hz
The problem is when i lift the Lift one of the motors is lifting a...
Hi Everyone,
Sorry if I am being stupid with this ( its late and i'm very tired)
Still learning and have had a call from a customer that their main switch (not mcbs) keeps tripping everytime they plug in a hoover, heavy duty drill, microwave, kettle into the socket circuit (all the house...
I have the results of my Tutor marked assignment (TMA) back today and i had one question wrong but i dont think it is.
Q- An electric lamp has a filament resistance of 534 ohms. when connected to a 230v supply, the current flowing would be?
A-122820
B-0.4307
C-4.307
D-2.322
I achieved my...
As far as i know, there is no way of checking an MCB for correct operation.
Then today, i've been told you can do it by placing the breaker under load and using an EFLI tester to do it.
How the hell would this work, sound like bull to me.:rolleyes:
Hi have just changed an existing ceiling light which had a transformer 240 - 12v with one very similar, just the output was different. I switched on for the first time and the new light started off dim then brightened and then dimmed again.
I removed the light to check that I was getting 240...
Hi all. Please can you advise me if there are any regulations about bolting a mains powered enclosure onto hand railings? The supply to the enclosure is single phase 10A
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